Capability of the Monte Carlo method to simulate resuspension phenomena

VIDALES, A. M.; IPPOLITO, I.; UÑAC, R.O.; BENITO, J.G.; VALENZUELA, K.

Tours

Congreso; 22nd European Aerosol Conference 2016; 2016

ASFERA

A model for the resuspension of a monolayer of particlesdeposited on a flat surface is developed based on aMonte Carlo (MC) simulation. Particles are attachedthrough an adhesion force. A turbulent flow is assumedto be responsible for the resuspension of particles. Thestochastic process used for resuspension is based on theevaluation of probabilities depending on the ratiobetween adhesion and aerodynamic forces and using aMetropolis function. Although simple, our modelaccounts for the main features of the resuspension fluxobserved experimentally and by other models. Figure 1shows the three typical behaviors for the resuspensionflux obtained through MC simulations. The model isable to clearly show the role that force distributionparameters (both for adhesion and turbulent) have on theshort- and long-term resuspension flux.